Mining-machine.



W. H. RAINS. MINING MACHINE. APPLIOATION FILED 001. 18, 1910.

997,699, Patented July 11,1911.

WILLIAM HENRY RAINS, OF HARTFORD, ARKANSAS.

MINING-MACHINE.

Specification of Letters Patent.

Patented July 11, 1911.

Application filed October 18, 1910. Serial No. 587,750.

To all whom it may concern:

Be it known that I, WILLIAM HENRY RAINS, a citizen of the United Statesof America, residing at Hartford, in the county of Sebastian and Stateof Arkansas, have invented new and useful Improvements inMining-Machines, of which the following is a specification.

This invention relates to mining machines, and it has for its object toproduce a simple and thoroughly eflicient machine formining coal fromthe top of the vein, next to the roof, although the range of utility ofthe machine is not to be regarded as limited in this respect.

A further object of the invention is to produce a machine of thecharacter described which shall possess superior advantages in point ofsimplicity, durability and general efiiciency.

With these and other ends in view which will readily appear as thenature of the invention is better understood, the same con sists in theimproved construction and novel arrangement and combination of partswhich will be hereinafter fully described and particularly pointed outin the claims. In the accompanying drawing has been illustrated a simpleand preferred form of the invention, it being, however, understood thatno limitation is necessarily made to the precise structural detailstherein exhibited, but that changes, alterations and modificationswithin the scope of the claims may be resorted to when desired.

In the drawing,Figure 1 is a perspective view of a mining machineconstructed in accordance with the invention. Fig. 2 is a verticalsectional view taken on the plane indicated by the line 22 in Fig. 1.

Corresponding parts in both figures of the drawing are denoted by likecharacters of reference.

The base of the improved machine includes a longitudinal bar or member 1and a transverse bar or member 2, the latter being disposed crosswiseadjacent to one end of the former, and said bar or member beingpivotally connected with the cross bar by a pin 3 having a retaining nut4s. The longitudinal bar 1 provided with an upwardly extending arm 5adjacent to the cross bar 2, and said cross bar is provided with an arch6 having a slot 7 for the passage of a bolt 8 extending from the arm 5,said bolt being equipped with a tightening nut 9. The ends of the crossbar 2 and the end of the longitudinal bar which is distant from saidcross bar are provided with ground engaging spurs 10.

The longitudinal bar 1 is provided intermediate its ends with a sleeve11 having an upwardly extending lug 12 with which a tubular socketmember 13 is hingedly connected by means of a pin 14. Springs 15 connectthe socket member 13 with the bar 1 at opposite sides of the hinge, saidsprings serving to maintain the socket member normally in an uprightposition from which, however, it may be tilted in either direction. Itis evident that when the socket member is thus tilted, one of thesprings will be placed under tension and that when the strain requiredto tilt the socket member is removed, the said socket member willautomatically assume an upright position.

Telescoping in the socket member 13 is an extension rod which iscomposed of two hingedly connected members 16 and 16, and which may beretained at various elevations by a set screw 17. Swiveled upon theupper end member 16 of the extension rod by means of a pin or screw 18is a T-head l9. Extending through the T-head is a tool holder 21 whichmay be secured by a set collar 22 and which is socketed at one end forthe reception of a drilling tool 23 which may likewise be secured by aset screw 24. The handle end 25 of the tool holder is made sufficientlyheavy to counterbalance the load which may thus be convenientlymanipulated.

In the operation of this device, the base frame rests upon the groundwhere it is securely held by the ground engaging spurs 10. The bar 1 maybe tilted to various positions with reference to the cross bar 2 and maybe secured at any desired adjustment by the tightening nut 9. The socketmember 18 may thus be disposed at various inclinations. The elevation ofthe tool may be regulated by adjusting the extension rod 16, 16 in thesocket member 13, and the tool holder may be rotated in the T-head,which latter is swiveled upon the upper member 16 of the extension rod,thus enabling the tool to be presented in any desired direction. Thedevice is operated by rocking the hingedly mounted spring supportedsocket member 13, thus enabling effective blows to be struck.

Having thus described the invention, what is claimed as new, is

1. In a device of the character described, a base including a cross bar,a longitudinal bar connected with said cross bar intermediate the endsof the latter, and means for securing the longitudinal bar at variouspoints of oscillation, a socket member hingedly connected with thelongitudinal bar, and a tool carrying extension rod in said socketmember.

2. In a device of the character described, a base comprising a cross barand a rocking member adjustably connected therewith, a socket memberhingedly connected with the rocking member, a tool carrying extensionrod telescoping in the socket member, means for securing the extensionrod at various adjustments, and springs connecting the socket memberwith the rocking member.

3. In a device of the character described, a base comprising a rockingmember, a socket member hingedly connected therewith, springs connectingthe socket member with the rocking member, an extension' rod telescopingin the socket member and comprising two hingedly connected members, aT-head swiveled upon the extension rod, and a tool holder extendingthrough and revoluble in the T-head.

4. In a device of the character described, a base comprising a rockingmember, a socket member hingedly connected therewith, an extensionmember telescoping in the socket member and comprising two hingedlyconnected members, a T-head swiveled upon the extension member, meansfor securing the latter in adjusted position, and a tool holderextending through and revoluble in the T-head.

5. In a device of the character described, a base comprising a rockingmember, a socket member hingedly connected therewith, supporting springsconnecting the socket member with the rocking member, an extensionmember telescoping in the socket member, means for securing theextension member at various adjustments, a 'T-head swiveled upon theextension member, and a tool holder extending through and revoluble inthe T-head.

6. In a device of the character described, a base comprising a rockingmember, means for securing said rocking member at various points ofoscillation, a socket member hingedly connected with the rocking member,springs connecting the socket member with the rocking member, anextension membertelescoping in the socket member, a'

T-head swiveled upon the extension member, means for securing the latterin adjusted position, and a tool holder extending through and revolublein the T-head.

In testimony whereof I afiix my signature in presence of two witnesses.

WVILLIAM HENRY RAINS. WVitnesses:

W. T. Fommsrnn, T. J. MOCLUNEY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

